Question

Решите уровнения 11-x^2(x+9)=8x-(x+3)^3

Answer 1

11-x²*(x+9)=8x-(x+3)³
11-x³-9x²=8x-x³-9x²-27x-27
19x=-38  |÷19
x=-2
Ответ: x=-2.

Answer 2

11-x³-9x²=8x-(x³+9x²+27x+27)
11-x³-9x²=8x-x³-9x²-27x-27
19x = -38
x = -2